TRUTH: The limit for most recreational dives is 100 feet of depth, but most dives are far shallower. With most of the light and most of the critters living in less than 50 feet of water, this is the best depth to see the majority of things you’ll want to see while underwater. Divers CAN be trained to go deeper in an advanced-level course, and many find this a rewarding experience once their initial certification experience is completed.